Four-wheel truck.



E. DOERH.

FOUR WHEEL TRUCK.

APPLICATION FILED MARSH, 1912 LQfiQfiQh Patented 51111925, 1912.

H. E. 1101-31111. FOUR WHEEL TRUCK. APPLICATION FILED MAR.11,1912. I l fifiwfi h Patented June 25, 1912..

2 SHEETSSHEBT 2.

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HARRY E. DOERR, or ST. LOUIS, MISSOURI,

Application filed March 11, 1912.

integrally connected together spring plank and hangers for supporting clear,

-whel truck frame forthe springs which is a;side elevational view partly in vertical pariah snares PATENT canton.

STEEL COMPANY, OF ST. LOUIS, MISS ASSIGNOR T0 SCULLIN-GAL'LAGHER IRON 8; OURI, A CORPORATION OF MISSOURI.

Form- E L TRUCK.-

To all whom it may concern: v

Be it known that I, HARRY E. Donna, a citizen of the United States, residing at St. Louis, Missouri, have invented a certain new and useful Improvement in Four-\Vheel Trucks, of which the following is a full, and exact. description, such as will enable others skilled in the art to which it appertains to make and use the same.

This invention relates to car trucks, and particularly to four-wheel trucks of the type in which the wl1eel-pieces and transoms are and are preferablyformed from a one-piece casting.

One object of my invention is to provide a car truck of thet-ype referred to which is so designed "that it is not necessary to use a the bolster.

Another object is toprovide a car truck referred to which comprises roller devices that support the bolster and provide for the-lateral movement of the bolster. And still another object is to provide an inexpensive and serviceable fourthat has integral seatssupport the bolster.v

Other objects and desirablefeatures of my invention will be hereinafter pointed out.

Figure 1 of the drawings is a top plan view of a four-wheel truck frame construct ed in accordance with my invention; Fig. 2'

Section of the truck illustrated in Fig. 1;

Fig. 3 is a vertical cross sectional view of I said truck; and Fig. 4 is a detail view illustrating a slight modification of my invention.

Referring to the drawings which illus-' trate the preferred form of my invention, A

designates a one-piece casting comprising a pair of wheel-pieces 1 and two single transoms 2 that connect said wheel-pieces together. The wheel-pieces 1 are preferably channclshaped in cross section and are arranged with their horizontal flanges proecting outwardly, as shown in Fig. 3, and the pedestals B preferably consist of members that are detachably connected to the wheel-pieces 1.. The springs C, which are interposed between the wheel-pieces and the equalizers D, fit in spring seats or pockets, 3 "on the under sides of the wheel-pieces 1, and the transoms 2 which connect the wheel- Specification of Letters Patent.

tion, and the top and Patented J une 25,1912. Serial No. 682,995.

pieces together are preferably arranged about midway between the bolster E and the wheel afilcs F, asshown in Fig. 1,-so as to produce a truck frame that is substant-ially as' strong as a frameprovided with double transoms on each side of' the bolster. Each of the transoms 2 has a relatively narrow intermediate or central portion and two relatively wide end'portions, the wide end portions of the transoms cooperating with each other to guide the bolster and prevent it from swaying. 'Said transoms are approximately.channelshaped in cross secbottoni flangesthereof are integrally connected to the horizontal flanges of the wheel-pieces -1, the .vertical webs of the transoms being also'integrally connected at their outer ends to the vertical webs of the wheel-pieces.

The bolster 'E is supported by springs G which rest upon spring seats that are integrally connected to the wide end portions of the transoms 2, each ofsaid spring, seats comprising a horizontally disposed portion. 4 on which its cooperating spring G rests, and two vertically disposedside portions 5 whose upperends are integrally connected to the widevendportions of the transoms 9,

as shown clearly in Figs. 2 and 3. Roller bearing devices comprising rollers 6 and .roller seat members? are arranged between the bolster and the springs G so as to provide for the lateral motion of the bolster, and the vertically disposed portions 5 of, the spring seats are provided on their inne'r faces with vertically disposed ribs 5 that fit. between laterally "projecting lugs 7 on the roller seat members 7 and thus. guide said members and hold them. in position. .Any suitable type of springs and roller devices may be used for supporting the bolster, and therefore I do not wish it to he understood that my invention is limited to the exact coi'istruction illustrated in the drawings for my invention broadly stated consists in a 00 four-wheel truck frame provided with Stationary seats or supports for the springs that carry the bolster.

Vith a four-wheel truck frame of the character above-desqibcd there is no danger '105 of the bolster dropping down because the portions that support and carry the bolster are integrally connected to the main portion of the frame. Consequently, a car truck above-described is a decided improvement on the four-wheel car ,trucks now in general use in which the bolster is carried by-v -a spring plank that is supported by means of links from the main portion of the frame of the truck. By eliminating the spring plank and the hangers which ,support same I reducethe weight of the truck and also reduce the cost of manufacture without im-;

pairingthe efficiency ofthe truck becanse the roller devices that are interposed be tween the bolster and the springs that support the bolster providefor the lateral'motion of the bolster l '15 As previously stated, I-prefer to cast-the seats or supporting devices" for the springs G-integral with the transoms 2 that connect the wheel-pieces together but this is not absolutely essential to the successful operation of my truck and therefore said spring" seats could be'combined with or connected to the main portion of the frame of the truck in various other ways without departing .from the spirit of my invention.

. For-example, the spring seats? could be detachably connected to the transor'ns as shown in Fig. 4, and,if desired, shims 4Q couldbe arranged between the topfaces of -Having 'thus described ,my invention,

what I claim as new and desire to secure by Letters Patent is:

1. A car truck having a frame that comprises Wheelpieces, transoms integrally connected to said wheel-pieces and spaced apart. to receive a bolster, spring seats in- 40 tegrally connected to said transoms and'con structed to receive the springs-that support the bolster of the truck, and a lateral-motion' device arranged between the bolster and the springs. I

- 2. A car truck having a frame which comprises wheel-pieces and transoms integrally connected together, a bolster arranged between saidtransoms, stationary spring seats forming part of said frame, springs carried by said spring seats, and roller devices in terposed between said springs and bolster.

3. A car truck having a frame which-comprises wheel-pieces and transoms that are integrally connected together, a bolster arranged between said transoms, stationary.j

spring seats'forming part of said'frame, springs carried bysaid spring seats, roller devices interposed between said s'pringsand I bolster, and means on said spring seat members for guiding the roller seatmembers of said roller devices and holding themin position. 4. A' four-wheel. truck having a frame, comprising two wheel-pieces and two sin 1e transoms integrallytconnected' together, t e end portions of said transoms-being relatively wider than the intermediate portions of same, a bolster arranged between said transoms-and guided by therelatively wide end portions of same, spring seat members ZO integrally connected to the endportions' of said transoms and each consisting of a horizontally disposed part and two, vertically disposed side-parts, springs mounted on the horizontally disposed parts of said spring seatmembers, roller devices consisting of rollers and roller seat members arranged between said springs and bolster, and ribs on the vertically disposed side parts of said springs'eat members which guide the roller seat members of said roller devices. 1

5. A four-wheel truck having a frame which comprises. a single casting consisting of wheel-pieces and twov single transoms ins tegrally connected, together, and spring seats forming'pa'rt of said casting and comprising vertically disposed portions i'ntegrally connected to said tra'nsoms and a cross-piece onwhich the spring-rests.,- 1 4 6. 'A four-wheel truck having alframe which comprises a single casting-consisting of wheel-pieces and two single ,transoms integrally connected together, spring seats forming part of said casting andcomprising vertically disposed portions integrally connected vto said transoms and a crosspiece on which the spring'rests, and ribs on the vertically disposed port-ions of said spring seats for guiding the roller seat inembers .o-froller-devices that provide for the lateral motion of the bolster of the truck. In testimony whereof I hereunto aiiix my signature in the presence of two witnesses, this first day of March 1912.

V HARRY E. DOERR. \Vitnessesz' VVELLs L. CHURCH, GEORGE BAKEWELL. 

